Wiring - GasTech GTA-4100R Operator's Manual

2.2 Wiring

Both the Micro Rack
at the back of each enclosure that the GTA-4100R cards plug into. It is also where all wiring terminates via
terminal blocks.
The Micro Rack
blocks are on the same side as the cards plug in.
The 19" rack version is terminated from the back and the 4100R cards are plugged into the front.
The diagram below shows the location of the terminal blocks and remote or individual channel relays on the
back plane.
4-20mA wiring
24VDC Power
4-20mA wiring
Page 10
TM
and the standard 19" rack case versions contain a back plane. The back plane is the PCB
TM
version gets terminated from the front as the system is wall mounted - the termination
19" Rack Mount
Sensor wiring
Alarm relays
wiring
Alarm relays
wiring
Sensor wiring
Micro Rack
Alarm
wiring
4-20mA wiring
Alarm relays
4-20mA wiring
wiring
© 2008 GasTech Australia Pty Ltd
TM
relays
Sensor wiring
24VDC Power
Sensor wiring